Publications

• Pré-publication, Document de travail

Competing effects of charge-carrier and impurity scattering limiting phonon heat conduction in heavily-doped silicon

Raja Sen, Juan Carlos Acosta Abanto, Mélanie Brouillard, Séverine Gomès, Jean-François Robillard, Alessandro Ciavatta, Lorenzo Paulatto, Nathalie Vast, Jérôme Saint-Martin, Jelena Sjakste, Pierre-Olivier Chapuis

With respect to undoped semiconductors, thermal transport by phonons is limited by two additional mechanisms when doping increases: charge-carrier and impurity scattering. Previous works provided contradicting conclusions on the dominant doping-induced scattering mechanism in silicon. In this work…

2026. ⟨hal-05451267⟩

• Article dans une revue

On the importance of Ni–Au–Ga interdiffusion in the formation of a Ni–Au/p-GaN ohmic contact

Jules Duraz, Hassen Souissi, Maksym Gromovyi, David Troadec, Téo Baptiste, Géraldine Hallais, Nathaniel Findling, Phuong Vuong, Rajat Gujrati, Thi May Tran, Jean-Paul Salvestrini, Maria Tchernycheva, Suresh Sundaram, Abdallah Ougazzaden, Gilles Patriarche, Sophie Bouchoule

High-resolution transmission electron microscopy (TEM) coupled to energy dispersive X-ray spectroscopy (EDX) is used to clarify the exact role of Ni-Au-Ga interdiffusion mechanisms taking place during rapid thermal annealing under an oxygen atmosphere of a Ni-Au/p-GaN contact. It is shown that…

Journal of Applied Physics, 2026, 139 (2), pp.025102. ⟨10.1063/5.0295857⟩. ⟨hal-05473565v2⟩

• Article dans une revue

Comment on “Influence of layer thickness on time domain Brillouin scattering oscillation amplitude in multilayer films” [J. Appl. Phys. 136, 225302 (2024)]

Simon Ayrinhac, Arnaud Devos, Benoît Rufflé, Marie Foret

Picosecond acoustics allows for the probing of multilayered nanometric structures, with applications in various fields of fundamental research. In a recent study, Zhang et al.1 have reexamined the optical cavity effect that impacts time-domain Brillouin acoustic spectroscopy (TDBS) in such systems…

Journal of Applied Physics, 2026, 139, pp.016101. ⟨10.1063/5.0284277⟩. ⟨hal-05472974⟩

• Communication dans un congrès

DeeCLIP: A Robust and Generalizable Transformer-Based Framework for Detecting AI-Generated Images

Mamadou Keita, Wassim Hamidouche, Hessen Bougueffa Eutamene, Abdelmalik Taleb-Ahmed, Abdenour Hadid

This paper introduces DeeCLIP, a novel framework for detecting AI-generated images using CLIP-ViT and fusion learning. Despite significant advancements in generative models capable of creating highly photorealistic images, existing detection methods often struggle to generalize across different…

Advanced Concepts for Intelligent Vision Systems (ACIVS 2025), Jun 2025, Tokyo, Japan. pp.146-158, ⟨10.1007/978-3-032-07343-3_12⟩. ⟨hal-05473197⟩

• Article dans une revue

Mo-enhanced passivity of stainless steels studied at metal/oxide interfaces by DFT atomistic modeling

Xian Huang, Dominique Costa, Vincent Maurice, Philippe Marcus

Applied Surface Science, 2026, 716, ⟨10.1016/j.apsusc.2025.164709⟩. ⟨hal-05322240⟩

• Pré-publication, Document de travail

SPARK-IL: Spectral Retrieval-Augmented RAG for Knowledge-driven Deepfake Detection via Incremental Learning

Hessen Bougueffa Eutamene, Abdellah Zakaria Sellam, Abdelmalik Taleb-Ahmed, Abdenour Hadid

Detecting AI-generated images remains a significant challenge because detectors trained on specific generators often fail to generalize to unseen models; however, while pixel-level artifacts vary across models, frequency-domain signatures exhibit greater consistency, providing a promising…

2026. ⟨hal-05596260⟩

• Chapitre d'ouvrage

Chapter 2. Electromagnetic wave to material interaction and microwave materials measurements

Kamel Haddadi, Malgorzata Celuch

Electromagnetic Interference Shielding Materials, Electromagnetic Interference Shielding Materials Graphene-Based Composites and Beyond Woodhead Publishing Series in Electronic and Optical Materials, Elsevier, pp.3-28, 2026, ISBN: 978-0-443-36630-7. ⟨10.1016/B978-0-443-36630-7.00004-1⟩. ⟨hal-05619825⟩

• Chapitre d'ouvrage

Path eigenfunction localization and sensing

Abdellatif Akjouj, Housni Al-Wahsh, Eman Abdel-Ghaffar, Madiha Amrani, Leonard Dobrzyński

Leonard Dobrzynski. Sensing, Elsevier, pp.39-70, 2026, Interface Transmission Tutorial Book Series, Sensing Long-Lived Resonances, 978-0-443-32944-9. ⟨10.1016/B978-0-44-332944-9.00013-X⟩. ⟨hal-05569940⟩

• Chapitre d'ouvrage

Fundamentals of magnetic field sensing using ferromagnetic thin films and elastic waveguides

Aurélien Mazzamurro, Abdelkrim Talbi, Olivier Bou Matar, Othmane Marbouh, Mohamed Boutghatin, Mohammed Moutaouekkil, Gaetan Sanchez, Noura Ezzahni, El Houssaine El Boudouti, Yannick Dusch, Nicolas Tiercelin, Philippe Pernod

Sensing, Elsevier, pp.357-403, 2026, ⟨10.1016/B978-0-44-332944-9.00026-8⟩. ⟨hal-05576867⟩

• Article dans une revue

0.53 mΩ.cm 2 /592 V High Breakdown Voltage GaN-on-Sapphire Schottky Diodes Without Edge Termination

Hugo Bouillaud, Beatriz Orfao, Etienne Okada, Yannick Roelens, Malek Zegaoui, Mohammed Zaknoune

In this letter, we report high-performance Pt/GaN quasi-vertical Schottky barrier diodes on sapphire substrate. With a 5 μm drift layer and a highly controlled fabrication process, the devices demonstrate an extremely low on-resistance of 0.53 mΩ.cm² while exhibiting a high breakdown voltage of 592…

IEEE Electron Device Letters, 2026, pp.1-1. ⟨10.1109/LED.2026.3652934⟩. ⟨hal-05484994⟩